Packing-ring for shafting.



No. 818,365. PATENTED APR. 17, 1906. W. L. R. EMMET. PACKING RING I'OR SHAFTING.

APPLICATION FILED JUNE 28, 1905.

flwentar: M'l/famLR fmmet no. eta-ass.

rain

' race.

W1LL1A1%-L.,R. nan/inn on sonsnnora'nr, NEW roan, ASSIGNOR T ennnsan r. aerate eo-MPA Y, A CORPORATION or NnwronK.

fipecification of Letters Patent.

Patented April it. 1906.

Application filed June 28,1905. Serial No. 267,324.-

It consists in a segmental ring of carbon or other suitable material held stationary in a chamber and fitting the shaft closely. A stationary abutmentis provided against which the r ng 1S forced to prevent the escape of the elalstichfluid-from said chamber.

n; t eaccompan drawings V Figure 1 is asectional'elevation of an upright shaft promy improved pachng. Fig. 2 is aicros ion of the same. Fig. 3 is a top p s; a pachng' ring on an enlarged scale. Fig 4 is a side elevation of the same, and Fi s. 5 and 6 showfront and edge views of two p ates that are used in the complete structure.

The shaft 1 is shown as passing up through an aperturein a casing 2, in which steam or other elastic fluidis confined under pressure 4 as, for 1nstance,'1n a steam-turbine.

shaft is preferablyprovided with a sleeve 3, which has a smooth cylindrical outer surface.

' Fitting .snu 1y to this surface is 'a packingrmg, or, if esired, a plurality of such rings arra ed in 5. tier. T e rings are composed of car on or some similar material and are molded in segments 4, as shown. The abuttin ends of the segments are rabbeted towet er, the meetin surfaces '5 (see dotted line, Fig. 4) of the oints being on planes'of i'evolcftion. The end surfaces 6 of the segthe se ments do not quite touch in order to permit entsto be drawn closely against the slats, .y an elastic band, such as the garter spring or springs 7, embedded a groove or grooves 8 in the periphery of thering.

Awide groove is cut across the ring at each goint toipermit the application thereto of a late 9,which covers both of the betweenlthe adjacent ends f clearly shown in Figs. 3 and arealp-j oint p band has an inwar which the packing-ring rests. -vided with a plurality of sockets 13, inwhich uid is confined f a joint between two segments of- The I 4. The transverse groove in which the plate isrecei'ved is preferably of the same depth as the grooves 8, so that the springs 7 can pass 'over said plate.-

Each ring is inclosed in a metallic holder, such as the band 10, made, preferably, in segments clamped to ether by bolts 11. The

ally-extending flange 12, on

It is also proare seated springs 14, which urge the holder and its ring upward against a stationary abutment, such as an inwardly-extending flange 15 on a collar 16, surrounding the shaft and secured to the casing. The upper ring bears against a plate 17,. bolted to the up or collar. The. spaces below. this plate an the flanges form annular chambers to house the packing-rings. The rings are held up against seats faced off on the under side of said plate and flanges, and the first or lowest ring is held there not only b the springs 14, but also by the pressure of t e elastic fluid in the casing, which has free access to the chamber in which this first ring is ocsiteid. If d1? so ee into t e sired, live steam may a other chambers by the pipes 18 in order to insure a tight joint between the rings and their seats.

The rings are stationary, and the shaft and shaft by means of lugs 21 thereon, which enter recesses 22 in the inside of the collars.-

It will be seen that the tier of rings forms an efiectual packing for the shaft. Should ed by those above it.

sto

1.. A packing-ringlfor shafts composed of segments having t ether on a plane of revolution, and a breakoint plate covering the outer ends of the radial spaces between the ends of said segments.

2. A packing-ringlfor shafts composed of segments having t any steam leak past the first-ring, it will be at I claim asnew, and desire to secure by Letters Patent of the United States, is

eir ends rabbeted tosir ends rabbeted to-v gether on a plane of revolution, a cireunnfen enti'al groove in its periphery, an elastic band in said groove, and a break-joint plate cover ing the outer ends of't'he radial spaces between the adjacent ends of said segments and held in place by said band.

3. A packing-ring for shafts composed of segments having their ends rabbeted together on a plane of revolution, a circumferential groove in its periphery and a transverse groove at each joint, a garter-spring in the circumferential groove, and break-joint plates in thetransverse grooves under said spring. 4. The combination with a segmental packing-ring, of a holder composed ofa band having an inwardly-extending flange, and provided with sockets to receive springs, tor urging said holder in a direction parallel. with its axis. V 5': The combination with a segmentalpack ing-ring, of aholder for the same made iii segments, and anchors for said ring'clamped between the segments of said holdein.

6. The combination With-a segmental packirig-ring, of a holder for the same made in segments, and a plate clamped between said segments and having prongs entering said packing-ring.

In witness'whereof I have hereunto set my 30 hand this 27 thday of June, 1905.

' WILLIAM L. R. EMMET.

Witnesses: I

BENJAMIN B. HULL, HELEN ORFo o 

